BoJ September Minutes: Board Members Debate Hike Pace, the Neutral Rate and Mortgages

The short version: the debate inside the BoJ is about pace and destination, not direction

On 5 November 2026 the Bank of Japan published the minutes of its 17–18 September monetary policy meeting, the meeting at which it raised the policy rate by 0.25% from around 1.0% to around 1.25% ^[1]. The minutes show that board members agreed the Bank should keep raising rates in line with economic, price and financial conditions ^[1]; where they differed was mainly on how fast to go and where to stop. For anyone planning to buy property in Japan with a mortgage, these minutes say much more about the direction and possible height of rates than the brief statement released after the meeting.

The facts: what the minutes record

• A 7–2 vote: the policy rate was raised to around 1.25% and the basic loan rate to 1.5%. Board members Asada and Sato dissented, arguing respectively that consumer inflation was still below 2% and the economy not especially strong, and that the timing of a hike was not appropriate ^[1].
• Unanimous on further hikes: members agreed that, with underlying inflation approaching 2% and financial conditions still accommodative, the Bank should continue raising the policy rate and adjusting the degree of easing ^[1].
• "Get there sooner": one member said it would be desirable to bring the policy rate close to its rough destination early, so the Bank could respond flexibly in either direction ^[1]. Another said that if signs of an inflation overshoot appeared, the Bank would have to speed up the pace of hikes ^[1].
• No longer "twice a year": one member noted that in 2024 and 2025 the Bank raised rates only twice a year, but now that central banks in the US, Europe and elsewhere have turned toward hiking, it has entered a new phase that calls for flexible responses and even discussion of the size of hikes ^[1].
• Others urged calm: another member said there was no sign of acceleration that would leave the Bank behind the curve and no need to rush, though policy should keep prices from rising excessively ^[1].

Background: where is the neutral rate? Markets and members disagree

The neutral rate is the level of interest rates that neither stimulates nor restrains the economy, and it is generally seen as the rough end point of this hiking cycle. According to the minutes, one member pointed out that the one-year OIS (overnight index swap) rate two years forward, often read as the market's view of the terminal rate, was above 2% ^[1]. Another noted that if one assumes the natural rate of interest is roughly equal to potential growth and adds the 2% inflation target, that figure is also currently above 2% ^[1].

Yet another member felt that market expectations of rate hikes were running somewhat ahead of the domestic economy and the dynamics of wages and prices ^[1]. Many members concluded that because the neutral rate cannot be observed directly and is hard to pin down in advance, the Bank should look for it step by step, checking how companies, households and financial institutions react after each move ^[1]. On the government side, the Cabinet Office representative asked the Bank to examine the cumulative impact of past hikes and to take its own neutral-rate estimates into account ^[1].

The minutes also note that the long-term interest rate (the 10-year government bond yield) rose during this period as market participants raised their terminal-rate expectations ^[1]. That yield is the main driver of fixed-rate mortgage costs.

The passage that speaks directly to mortgages

One member addressed housing loans specifically. As long as people continue to expect house prices to rise, higher mortgage rates may not greatly affect their buying and borrowing behaviour; but because the effect of rising rates on households differs by age group and by the mix of assets and debts, it needs to be watched carefully ^[1].

After the September hike, the Bank held the rate at 1.25% at its 30 October meeting by a vote of 8 to 1; the lone dissenter proposed raising it to 1.5% ^[2]. The next meeting is on 17–18 December, and the minutes of the October meeting are scheduled for release on 23 December ^[3]. On the variable-rate side, MUFG Bank raised its short-term prime rate from 2.375% to 2.625% with effect from 2 November, and variable-rate mortgages linked to it will reflect the change according to each bank's rules ^[4].

What this means for buyers

Variable rates: build one or two more hikes into your budget. The minutes describe a board that agrees on direction and differs only on pace ^[1]. Rather than guessing whether the Bank will move in December, it is more practical to calculate your monthly repayment if the policy rate rises another step or two, and check that it remains comfortably affordable.

Fixed rates: watch expectations of the end point, not single meetings. Fixed rates mainly follow long-term yields, which reflect where the market thinks rates will end up. If markets keep raising their view of the neutral rate, fixed rates could rise first; if not, they could ease ^[1].

Do not rely on rising prices alone. The member's view was that rate rises matter less while people expect prices to keep climbing ^[1]. Read the other way, if price expectations weaken, the burden of higher rates will be felt more strongly. Owner-occupiers should check repayments against income; investors should check whether rents can cover costs after rates rise.

Overseas buyers: consider exchange rates and interest rates together. The minutes repeatedly discuss how currency moves affect prices ^[1]. If you are buying with foreign-currency funds, run your numbers under several combinations of exchange rate and interest rate.

Summary

The September minutes show that no one on the BoJ board objects to further hikes, that the debate has moved on to the speed of tightening and the location of the neutral rate, and that at least one member has explicitly discussed how mortgage rates relate to buying behaviour ^[1]. Uncertainty around the December meeting remains. If you would like to compare variable and fixed rates, or see what the monthly repayment on a particular property would be under different rate scenarios, please get in touch through our contact form and we will work through the numbers with you.